Sentence examples for both calves were negative from inspiring English sources

The shedding rate decreased quickly and on day 54 pi (day 12 after second inoculation) both calves were negative.

Lung sections from the control calves were negative.

These calves were negative for the tuberculin skin test and showed absence of an in vitro gamma interferon (IFN-γ) response to both avian tuberculin PPD (PPDA) and bovine tuberculin PPD (PPDB).

Real-time PCR for detection of DNA of Mycobacterium tuberculosis complex and Mycobacterium avium subsp. paratuberculosis in intestinal and lymph node samples of two calves was negative.

Cultural examination of the lungs from control calves was negative for M. bovis but positive for α-haemolytic streptococci, S. aureus and enterococci in two (Nos. 9 and 10).

The genetic relationships between postpartum intervals and BW and BCS of the female at calving were negative: the genetic aptitude to be heavier at calving and to have high body reserves was related to shorter postpartum intervals.

Both calves were culture-positive the next day (43 pi).

Both calves were euthanized because of a poor prognosis and the diagnoses confirmed during postmortem examination.

Calves that were negative for Giardia infections at the first sampling were sampled again at subsequent farm visits.

Both tests were negative.

Both controls were negative.